Most enzymes are made up of proteins and therefore may be inactivated by A. changes in temperature B. changes in pH C. salt concentration D. all of the above

Q: Which of the following is incorrect? a. Protease inhibitors are small proteins that pose as protease…

A: Proteases are enzymes that can cause the hydrolysis of peptide bonds and can thus cleave the protein…

Q: Which of the following is MOST likely the reason why prions are infective? A. Prions are small…

A: Prions are a specific type of protein that triggers normal proteins in the brain to fold abnormally.

Q: Due to the work of the sodium-potassium pump, the charge on the outside of the cell is…   A. The…

A: Cell is a structural and functional unit of living organisms. Several cells joined together to form…

Q: Receptors located within the cell are mostly  A. Protein  B. Glucoprotein C. Glucose D. Chitin D.…

A: Cell is the fundamental unit of life. Cells communicate with each other by a process known as cell…

Q: The following enzymes are substrate specific except?? a. urease b. glucose oxidase c. alkaline…

A: Various chemical reactions that take place in the environment are divided into different categories.…

Q: Which of the following is not a CYP450 catalyzed oxidation/reduction reaction? O A. deamination OB.…

A: The Cytochrome P450 (CYP450) enzymes are a group of enzymes that play a crucial role in the…

Q: Proteases belong to the 'lyases' group of enzymes: O a. FALSE O b. TRUE

A: Lysases are enzymes that catalyzes the breaking of C-C,  C-O, C-N, C-S and other bonds by means…

Q: Which of the following is incorrect regarding the active site of anenzyme?a. is unique to that…

A: Answer is d.)  is not affected by environmental factors, such as pH and temperature.

Q: All of the following increase enzymatic activity except a. an increase in temperature. b. an…

A: Enzymes are protein molecules which acts as a catalyst and speed up the reaction when they act on…

Q: An enzymea. becomes part of the final products.b. is nonspecific for substrate.c. is consumed by the…

A: The biological catalyst serves the function of accelerating the chemical reactions. In other words,…

Q: Which among the several mechanism below applies to the enzyme phenylalanine hydroxylase? A.…

A: B. Activation by phenylalaninePhenylalanine hydroxylase is activated by its substrate,…

Q: The following molecule is required for the activation of uridylytransferase   A. Glycine   B.…

A: Apoenzymes are not functionally active while  coenzymes are organic nonprotein molecules that bind…

Q: Label the x axis in each graph below with the appropriate factor (possible factors: temperature, pH,…

A: Introduction:  Enzymes are proteins that function as biological catalysts to accelerate the rate of…

Q: The Na+/K+/ATPase is...   A. An amino acid   B. A protein   C. An ion   D. An organelle

A: We have different sets of molecules in the body . They can be proteins,  of just atomic species ,…

Q: The active site of an enzymea. is identical in structure for all enzymes.b. is the part of the…

A: Enzymes which do chemical reaction for growth and development of the body is also made up of…

Q: ________ is a regulatory mechanism in which the end product of a metabolic pathway inhibits an…

A: Enzymes are biological catalysts. The enzymes, whose ability to catalyze a reaction depends upon…

Q: β-lactamase production by bacteria is an example of which of the following types of resistance? a.…

A:

Q: Which of the following compounds prevent cellular damage by reactive oxygen species? Select one: a.…

A: Cellular damage refers to harmful changes that occur within cells, affecting their structure,…

Q: choose one:   a. Steroids are hormones processed by their target cells at the plasma membrane b.…

A: The chemical messengers that are synthesized in one tissue and passed to one or other tissues…

Q: Which of the following is true about how enzymes work in the cell? A. Enzymes are consumed in the…

A: Proteins that catalyze biological reactions are known as enzymes. They catalyze several body…

Q: Which of the following substances inhibits PFK-1 enzyme? A. AMP B. Glucose-6-P04 C. Citrate D.…

A: A is incorrect Reason:  PFK-1 is inhibited allosterically by high levels of ATP and AMP reverses…

Q: antothenic acid in the cells is to make __________________for the metabolism of energy nutrients and…

A: The major function of pantothenic acid in the cells is to make  co-enzyme A for the metabolism of…

Q: ad is detrimental to a person because it takes the place of iron in blood, preventing oxygen from…

A: Lead cause the hindrance in hemoglobin synthesis therefore leading to Anemia.

Q: Some enzymes function to breakdown harmful compounds that if allowed to accumulate could cause…

A: Given that the substance if accumulated in the cell will be harmful and may even cause death until…

Q: The energy in ATP is

A:

Q: Four metabolites (C, J, M, X, and Z) are known to be in a pathway that ultimately produces J. An…

A: A metabolic pathway involves the breakdown and synthesis of different substances. And the synthesis…

Q: Define the following terms: a. turnover b. cyt P450 c. detoxication d. detoxification e. epoxide

A: Enzyme is a biological molecule that catalyzes a biochemical reaction and increases the rate of…

Q: When a protein becomes phosphorylated, it _________ a phosphate group.  This reaction is mediated by…

A: Some of the energy is utilized to generate ATP from ADP and Pi, but ATP is required immediately for…

Q: The organism Escherichia coli, a bacterium, normally lives in the large intestine of mammals. The…

A: Enzymes are the biological catalysts that play a crucial role in the metabolic reactions occurring…

Q: cells can regulate different processes in two ways. they can turn on and off the genes that make…

A: Enzymes are an important component of cellular machinery. Regulation of genetic machinery and…

Q: Which of the following is incorrect about the chymotrypsin mechanism? a. When His removes a proton…

A: Chymotrypsin is a protease which cleaves the carboxylic side of the aromatic amino acids.…

Q: The hormone aldosterone regulates blood pressure through: A. Reabsorption of sodium. B. Secretion…

A: Aldosterone is mineralocorticoid hormone which causes absorption of mineral. Epinephrine causes…

Q: A solution of glucose is 100% labeled with 13C at carbon 6, then is reacted upon with glycolytic…

A: The series of chemical reactions that occur inside the living body are collectively referred to as…

Q: Which of the following factors can denature an enzyme? 1. Competetive inhibitors 2.Extreme pH…

A: Enzymes are biochemical catalysts that function to increase the speed of biological reactions. They…

Q: Amino acids that potentially can participate in acid-base catalysis in an enzyme active site, by…

A: Proteins are made up of amino acid. Amino acids contain both an amino group and a carboxyl group.…

Q: Extra non-protein units that help enzymes are called a. cofactors b. helper cells c. companion cells…

A: Enzymes are biocatalyst that increases the speed of reaction by lowering the activation…

Q: During plasmolysis, the volume of water will_________. During lysis, the volume of water will…

A: Ans: Plasmolysis: It is the process where cells tend to lose water when they are kept in hypertonic…

Q: One approach to combat drug resistance in bacteria is to combine drugs to treat bacterial…

A: A bacterial infection refers to an invasion and proliferation of harmful bacteria within the body,…

Q: You are studying Protein X, which is a tetramer whose function is to bind glucose. You have found a…

A: In biochemistry, allosteric regulation (or allosteric control) is the binding of an effector…

Q: Define the following terms: a. adenylate cyclase b. Gαs c. Gβγ d. PKA e. CRE

A: All are used in biochemical cell signaling.

Q: An inborn error of metabolism is caused by a. a mutation in a gene that causes an enzyme to be…

A: Genetic material is nothing but the sequence of nucleic acids which is called as DNA. It contains…

Q: One difference between synport and antiport is that A. only antiport requires energy. B. only…

A: Symport and antiport are different types pf transporter protein.

Q: In the regulation of enzymes, which of the following represents a regulation process in which…

A: Enzymes are proteinaceous molecules that help in the catalysis of biochemical reactions. Most of the…